GreenSignal
by MuteDeck
Walk in ready.
The free pre-call check from the makers of MuteDeck. Camera, mic, sound and network, confirmed in a breath and resolved to one calm green light. Glance once. Go live.
Every call starts the same nervous way.
You join, and the fumbling begins. GreenSignal takes that whole anxious ritual and turns it into one calm glance, before anyone's watching.
The usual scramble
With GreenSignal
The moment you'll open it just to feel.
When everything passes, GreenSignal resolves into one satisfying READY: a soft bloom of green, a check that draws itself in, a gentle settle. Delightful the first time, still good the five-hundredth.
A real resolve.
A motion moment, not a checkmark slapped on. Three flavours to match your taste.
Built for back-to-back.
Restrained enough to feel good on your tenth call of the day, not just your first.
Everything's actually alive, and readable at a glance.
Your self-view shows real framing. The mic meter dances to your voice. A failed check is never a wall of red, just the one thing to fix, said kindly. And from the menu bar, one living light tells you where you stand.
See yourself, ready.
Camera preview, reactive level meter, a warm test tone you can actually confirm.
Reads in under a second.
Solid disc = go, ring + dash = fix. The signal lands for everyone, even at 16px.
For every time going live means something.
Back-to-back calls
A two-second glance between meetings beats walking in cold every time.
The big presentation
Board demo, client pitch, the funding call. Be perfect before the room is watching.
Interviews
First impressions start at hello. Don't let a muted mic be what they remember.
Webinars & recording
When you hit record there's no do-over. Confirm levels while it's still free.
Love the green light? Meet its big sibling.
GreenSignal gets you ready for the call. MuteDeck gives you one-press mute, camera and share controls during it, across Zoom, Teams, Meet and a dozen more. Trusted by 8,200+ professionals.
Questions, answered.
Yes, completely free. It's a free tool from the team behind MuteDeck. No trial, no card, no catch.
Both macOS (Apple silicon and Intel) and Windows 10 and 11. It's a free download on each.
Never. Every check runs locally on your device. The self-view and level meter are shown to you and only you, nothing is recorded, stored, or sent anywhere.
GreenSignal checks your actual devices and network, so it's ready for any call: Zoom, Meet, Teams, FaceTime, Webex, or anything else.
GreenSignal gets you ready before a call, a calm pre-flight check. MuteDeck gives you live mute, camera and share controls during the call. They're great together.
No. GreenSignal is quiet by default, it lives in your menu bar as a status light. The optional pre-meeting nudge is gentle and dismissible, never blocking.
Get the green signal.
Your next call is the only one that matters right now. Walk into it ready, for free.
GreenSignal by MuteDeck
Walk in ready. A free Mac pre-call check for camera, mic, sound, and network.